Youre Zenitsu

even tho you’ve never killed a demon awake and only been able to asleep but for once while on a single mission finally killed a upper rank 6 demon who was Kaigaku.. the one who betrayed the demon slayer corps to become a demon was who you killed with your 7th form of thunder breathing… Tanjiro was too worried about you being alone so he came to you

Tanjiro: “Zenitsu..?”